1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUt is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is t
2、he sole UHVSRQVLELOLWRIWKHXVHU SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE International All rights reserved. No part of this publication may b
3、e reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA)
4、Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2650_201305 SURFACE VEHICLE RECOMMENDED PRACTICE J2650 MAY2013 Issued 2005-09 Revised 2013-05 Su
5、perseding J2650 SEP2005 Performance Requirements for Light Emitting Diode (LED) Road Illumination Devices RATIONALE Revisions to this document were made to improve the consistence and clarity. The lumen maintenance test and requirement have been revised to reflect newly establish document SAE J2938.
6、 Specific changes are detailed below: - Road illumination device system is changed to road illumination devices for clarity. - Referenced document lists are updated to reflect new or updated documents. - Removed unrelated definitions and updated the definitions to be consistent with J387. - All forw
7、ard lighting devices applicable tests in SAE J575 are listed in Section 5. - All forward lighting devices applicable requirements in SAE J575 are listed in Section 6. - Removed life cycle test because it did not provide clear specification. Incorporated LED lumen maintenance test (SAE J2938) in its
8、place. 1. SCOPE This SAE Recommended Practice is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances. This document establishes additional performance requirements specifically for light emitting diode road illumination device sys
9、tems. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, War
10、rendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org SAE J575 Test Methods and Equipment for Lighting Devices for Use on Vehicles Less than 2032 mm in Overall Width SAE J759 Lighting Identification Code SAE J2650 Revised MAY2013 Page 2 of 5 SAE
11、 J2938 LED Light Source Testing and Requirements: LED Lumen Maintenance Part II 2.2 Related Documents The following publications are provided for information purposes only and are not a required part of this SAE Technical Report. 2.2.1 SAE Publications Available from SAE International, 400 Commonwea
12、lth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org SAE J387 Terminology Motor Vehicle Lighting SAE J578 Color Specification SAE J1383 Performance Requirements for Motor Vehicle Headlamps SAE J2357 Application Guidelines for Elec
13、tronically Driven and/or Controlled Exterior Automotive Lighting Equipment SAE J1889 LED Signal and Marking Lighting Devices 2.2.2 Federal Publications Available from the Superintendent of Documents, U.S. Government Printing Office, Mail Stop: SSOP, Washington, DC 20402-9320, http:/www.gpo.gov/fdsys
14、/ CFR Title 49 Part 571.108; Lamps, Reflective Devices and Associated Equipment (FMVSS 108) Available from Transport Canada, Roads Safety and Motor Vehicle Regulation, Ottawa, Ontario K1A 0N5, Canada, www.tc.gc.ca. or http:/www.tc.gc.ca/eng/acts-regulations/acts-1993c16.htm CMVSS 108 Lighting System
15、s and Retroreflective Devices 2.2.3 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org ASTM E 308-66 Recommended Practices for Spectrophotometry and Description Color in CIE 1931 System 3. DEFIN
16、ITIONS 3.1 LED Road Illumination Device A device functioning as a forward illumination device (e.g., low beam, high beam, fog, cornering, or auxiliary high beam) and contains LEDs. SAE J2650 Revised MAY2013 Page 3 of 5 4. IDENTIFICATION CODES, MARKINGS AND NOTICES 4.1 The device shall be marked in a
17、ccordance with SAE J759. Headlamps using LED devices shall be identified by the FRGH+/ Refer to specific device standards for possible additional marking requirements. 4.2 Permanent identification markings may be located on any component of the lamp assembly. 4.3 The design voltage shall be permanen
18、tly marked on the lamp unless a control module is used to supply power to the lamp. Where a control module is used, the wording “Control Module Required“ shall be indicated on the exterior of the lamp assembly. 5. TESTS 5.1 Each device shall be tested in accordance with the test section of each appl
19、icable SAE standard appropriate for the device and subsystem. 5.2 Tests per SAE J575 with the modifications as indicated. 5.2.1 Photometry Also test per applicable SAE standard except as noted. 5.2.1.1 Adjustments to Test Points Due to Temperature 5.2.1.2 A photometric measurement shall be made for
20、each specific function at the specified test point with the device at room temperature (23 C 4 C) after 1 min of operation. Other test methods which yield equivalent results may be used. For these measurements, the aim can be approximate, but must be maintained for the before and after ratio measure
21、ments. Once stability of photometry has been achieved (see 5.2.1.3), aiming of the device for complete photometry shall be performed in accordance with the requirements of each specific function. TABLE 1 TEST POINTS FOR ROAD ILLUMINATION DEVICES Function Point to Measure Low Beam 1.5D 2R High Beam H
22、 V Front Fog Lamp 2D V Auxiliary High Beam H V Front Cornering Lamp 2.5D 45R(L) 5.2.1.3 The lamp shall continue operation until photometric stability has occurred; when the photometry is stable within 3% of any 15 min period. Photometer the lamp at all test points required for the specific device. 5
23、.2.1.4 Calculate the ratio between the photometric test point determined in 5.2.1.2 and the same point determined in 5.2.2.3. 5.2.1.5 Apply the ratio calculated above to each of the remainder of the test points to create a new photometric table that describes the complete photometry based on 1 min o
24、f operation. 5.2.2 Vibration Test 5.2.3 Impact Test 5.2.4 Abrasion Test of Plastic Headlamp or Fog Lamp Lens Material 5.2.5 Thermal Cycle Test 5.2.6 Internal Heat Test SAE J2650 Revised MAY2013 Page 4 of 5 5.2.7 Humidity Test 5.2.8 Dust Test Integral beam headlamps are not subject to the dust test 5
25、.2.9 Corrosion Test 5.2.10 Corrosion Resistance Test of Reflectors of Replaceable Lens Headlamps or Fog Lamps 5.2.11 Chemical Resistance Test 5.2.12 Chemical Resistance Test of Reflectors of Replaceable Lens Headlamps or Fog Lamps 5.3 Luminous Flux Maintenance Test 5.3.1 The LED packages used in the
26、 device shall be tested according to SAE J2938. 5.4 Color Test The color for the emitted light from the device shall be measured per the test method specified in SAE J578. It shall also be measured before and after the luminous flux maintenance test (5.3). 5.5 Red Spectral Content $VSHFWURSKRWRPHWUL
27、FPHWKRGVKDOOEHXVHGWRFKHFNWKHUHGVSHFWUDOFRQWHQWNUHGRIWKHOLJKWIURPWKHOLJKWVRXUFHIRUcompliance with minimum red content specifications. Refer to ASTM E 308-66 for more details on spectrophotometric measurement. O OOOOOOO nm780nm380enm780nm610eredd)(V)(Ed)(V)(Ek(Eq. 1) where: Ee(O) W/nm is the spectral
28、distribution of radiant flux V(O) is the spectral luminous efficiency O nm is the wavelength 6. REQUIREMENTS 6.1 The device shall meet the requirements as specified in the “Requirements“ section of the standard applicable to the device being tested. 6.2 Meet requirements per SAE J575 6.2.1 Photometr
29、y 6.2.1.1 Photometric Affects Due to Temperature All photometry test point requirements as specified in the applicable standard shall be met after the photometric stabilization period, and with the applied 1 min/photometric stability ratio. SAE J2650 Revised MAY2013 Page 5 of 5 6.2.2 Vibration Requi
30、rement 6.2.3 Impact Requirement 6.2.4 Abrasion Requirement of Plastic Headlamp or Fog Lamp Lens Material Requirements 6.2.5 Humidity Requirement 6.2.6 Thermal Cycle Requirement 6.2.7 Internal Heat Requirement 6.2.8 Dust Requirement 6.2.9 Corrosion Requirement 6.2.10 Corrosion Resistance Requirement
31、of Reflectors of Replaceable Lens Headlamps or Fog Lamps Requirements 6.2.11 Chemical Resistance Requirement 6.2.12 Chemical Resistance Requirement of Reflectors of Replaceable Lens Headlamps or Fog Lamps Requirements 6.3 Luminous Flux Maintenance Requirement The LED packaged tested per J2938 shall
32、maintain luminous flux maintenance equal or greater than 80%. 6.4 Color Requirement The emitted light shall meet the requirements of the specific device being tested before and after luminous flux maintenance testing. 6.5 Red Spectral Content Requirement Devices that produce white light shall also h
33、ave a minimum red content as a percentage of the light from the device: 05.0kredt(Eq. 2) 7. NOTES 7.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous iss
34、ue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE ROAD ILLUMINATION DEVICES SUBCOMMITTEE OF THE SAE LIGHTING TECHNICAL COMMITTEE
